Force-feed lubricator



Spt.23, 1930. A. GEFFON ET AL FORCE FEED LUBRICATOR Filed June 2, 1924 INVENTO'R Patented Sept. 273', 1930 I UNITED STA/rss GEFFON AND .TOI-IN HOLTZMAN, F NEW' YORK, N. Y.

FOBCLFEED LUBRICATOB Application led .Tune 2, 1324. Serial No. 717,310.'

' rI`his invention relatesto improvements in apparatus used in connection with automobiles and like selfpropelled vehicles for affording a supply of compressed air used in inlating the tires and further, for supplying lubricant under pressure to any desired parts of the vehicle. f The principal object of the invention is to provide a portable apparatus including an electric motor arranged to drive either a rotary lair pump or a device for forcing a lubricant to wherever it may be desired. These and other similar objects are attained by the novel construction, combination and arrangement of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in'whichz-f Figure 1 is a side elevational view of a combined power operated air and grease pump.

Figure 2 is a similar view taken in a different plane.

Figure 3 is a side view of a further modi vcation in grease pump construction.

Figure 4 is van enlarged transverse .sec- -tional view taken on line 4-4 of Fig. 3.

A self contained power operated grease force pump is shown in-Figs. 3 and 4, in which a cylinder 125 is provided with adischarge 3U cap 126havingan extending nozzle 127 and v p y p p sion 161 ending in a transverse boss 162, carcontaining a chamber 128.

This chamber .is arranged with a conical portion 1-29 suited to serve as a seat for the spherical valve 130, held normally thereagainst by the spring 131, the same aabuttlng a collar 132 fixed in the nozzle. Y The rear end of the cylinder 125 is ixedly engaged with al casing 133 'provided with'a spade handle 134 and havinga trigger 135 to actuate a. switch as 181', controlling current entering the casing by a conductor 136, to

energize an electric motor 180 within the casgA screw threaded piston rod 137 is geared '45 to the Imotor shaft to run at a reduced'speed and mounted on the rod is a piston 138 held from rotating in the cylinder to which it is neatly itted`,by spherical detents 4139 freely movable in cam recesses 14() in opposite sides of the piston 138.

' Figs. 1 and 2, in which a power operated,.com

Thus as the motor is operated rectilinear motion is transmitted to the piston which is caused to move towards the discharge end of the cylinder, forcing out such quantity of grease as maybe required, the piston being returned by reversing the motor, air entering openings 141 in the cylinder to prevent back pressure caused by the moving piston.

A further modification is illustrated in bined air and grease pump is shown.

In this device a motor, not shown, is car'- ried in the casing 150 supplied with current by the conductor 151 and controlled by the switch actuating trigger 152, the latter being adjacent to the spade handle 153 by which the apparatus is manipulated.

The motor shaft 154 has formed on its extending portion a worm 155, operating in the outer chamber 156 of the casing and has on its end a fan 157 acting to produce a cooling current of air to maintain the motor at an equable temperature.

The worm 155 engages the teeth of a worm wheel 158 rotatable in an extension of the `75 chamber casing, the wheel being fixed to a spindle 159 one end of which extends through the casing and has rigidly attached to ita crank arm 160. y

Integral with the casing is an exten-4 rying a rotatable stud 163 by which is attached a lug 164 ormed on a cylinder 165 open at its vrearwardly .extending end.

Movable in this cylinder is a piston 166 provided with the usual packings and having a valve admitting air on its outward stroke, this piston being fixed onl a piston rod 168 provided with a transverse hub 169 suited tov engage .a wrist pin fixed in the crank arm 160.

Bolted to the extension 161 is another cylinder 170 having closedheads, one of which, at v' the delivery end, connects with a pipe 171 for dispensing lubricants, and the other head has a connection suited to receive the end of a tube 172, there bein a iioating piston 173 within the cylinder 1 for pressing the contents outwardly when advanced by -an air current.

The closed end of the cylinder is in communication with a T fittin 175, itsy When it is desired to use the apparatus for supply in air under compression, as for' filling a tire, the valve 178 will be closed and the valve 176 opened, the motor started, whereupon it will be obvious that, due to the action of the pump a powerful stream of air 'will be delivered.

, If it be desired to force grease into bearings or the like, the valve 176 will be closed and the valve 178 opened, the air from the pump then passing through the tube 172 to the cylinder 170 exerting force upon the pist0n 173l and causing exudation of the grease in the cylinder.

While certain preferred embodiments of this device have been shown and described, it will be understood that changes in the form, arrangements, proportions, sizes and details thereof may be made without departing from the scope of the invention as de- -lined in the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is s 1. A portable, power driven apparatus, for forcibly feeding lubricants ladapted to be carried in the hand of the user and adapted to be supported in operative position by the hand of the user, comprising a casing having a lmotor compartment therein, a handle on said casing, an electric motor housed in said compartment, a cylinder in threaded engagement with the motor casing and having v'a dlscharge opening at one end thereof, a piston movable in said cylinder, means for operating said piston including a threaded spindle arranged in said cylinder and operatively connected to said piston' and saidv motor whereby lubricant 1s forced through said opening in the cylinder on Athe rotation of' sa1d motor, and a motor switch associated with said casing. J v

2. A hand portable, power driven apparatus for forcing lubricants, comprising a cylinder adapted to contain a supply of lubricant "and provided at its forward end with a discharge opening, a piston adapted to be moved 'continuously in one direction lengthwise of the cylinder to discharge the, supply of lubricant, a casing having a grip for ,the-oper? ators hand extending from said cylinder and "arranged approximately coaxially therewith, Aan electric motor housed in said casing', means lactuated by -said motor to movesaid piston, said means including .a threadedspindle engaging and passing centrally through the piston to force the lubricant out of the cylinder -through the discharge opening of 'switch located in the hanle for. the operasaid cylinder, and a switch for controlling the operation of the motor.

3. A hand portable feed device for ejec t. ing a supply of'viscous materialeontained 1n said devlce comprising a motor casing, motor controlling means on said casing, an electric motor enclosed by said casing, a handle at one end of said casing by means of which the device may be carried about by the user, 1ndependent of any other support, a supply cylinder,designed to contain the entire supply of material to be fed by said device, arranged forwardly of the motor and removably seured at one end substantially inalignment with and to the other end of the motor casing, and a piston in said cylinder movable' from one-end to the other end of the cylinder on the rotation of the motor in a given direction for discharging the supply of materialin the cylinder.

4. A portable lubricant feeding appar-af` tus comprising a casing, a handle grip at 'one end of said casing a apted to be gripped by the hand of an operator y for sup porting said apparatus, an electric motor ao housed in said casing, a switch adjacent the handle grip arranged for operation by a finger of the operator while the operators hand is grasping said grip for controlling the operation of said motor, a 96 cylinder secured at one end to the other end Y of the casing, a threaded spindle in said cylinder, and means actuated by the spindle to force the lubricant out of the other end .of said cylinder under pressure.

5. A portable power driven ap aratus adapted to be crned and the weig Ethereof supported by the hand of the user, com-` prising a casing having a motor compartment therein, a handle on said casing, an electric motor housed in said compartment, an armature shaft for said motor, a cylindrical casing detachably fastened atene of y its ends to one end of said first casingz a l reciprocatory mem-ber housed in thecy 110 drical casing and operatively connected to the armature vshaft for vmovement in .the direction ofthe longitudinal axis thereof, a cover detachabl fastened to the other endI of said cylindrical casin and an electric tion of said motor.

6. A portable power driven apparatus .adapted to be carried about, supported 'by vand operated by the lhand of the user comrising a cylinder adapted to be filled with ubricant, a casing having a-grip. for the operators hand detachabl secured at one end to one end ofv said cy der,van electric motor housed in said casing and having an armature shaft concentric with the cylinder andextendinga substantial length into the interior of said cylinder, 'a' Areciprocatory4 member operatively connected to and actuated by said shaft in lthe `direction of thelw axis' of said hylinder anda cover detachably fastened to the outerend of the cylin der casing. l

7. A portable power driven tool adapted 5 to be carried by the hand .of the user comrising .a first casing, a `second cylindrical shaped casing 4and a cover for said cylindrical casing,- said casings being detachably secured to each other end to end, an electric -9 motor housed in the r'st casin and having an armature shaft, a disc-li e member of substantially the inner diameterV of the cylindrical casm operatively connecte and actuated by t e armature shaftn in the di- '15 rection ofthelongitudinal axis of said second'casing and a motor switch associated with said first casing. l f

In testimony whereof we.' have signed our names to this spec'ication. zu ABRAHAM GEFFON. JOHN HOLTZMN. l 

